COMM 217 Chapter 9: CHAPTER 9 - INTRODUCTION TO HYPOTHESIS TESTING.docx

• School: Concordia University
• Department: Commerce
• Course: COMM 217
• Professor: Fassil Nebebe

Document Summary

It is an application of statistical inference: provides managers with a structured analytical method for making decisions about population means, proportions, as well as comparing different populations. Null hypothesis: the statement about the population parameter that will be assumed to be true during the conduct of the hypotheses, the null hypothesis will be rejected only if the sample data provides substantial contradictory evidence. Alternative hypothesis: the hypothesis that includes all population values not included in the null hypothesis. The box of cereal has a mean fill of 16 ounces: testing a research hypothesis. Goodyear"s tires will last longer than 60,000 miles: testing a claim about a population. Average waiting time in a clinic is less than 15m. Step 1: the population parameter of interest (e. g. step 2: the hypothesis of interest to the researcher must be identified. Step 3: the null hypothesis will contain the equal sign, the alternative will not.